For years, search engines have been considered as one of the most frequently used information seeking tools through the web. Efficiency, ease of use andsearch quality are the main factors for giving precedence over search engines. Search quality is assessed based on the concept of page rank whichis applied to scoring web documents. The structures designed for linkage among the pages of a site as well as the linkage structure among the sitesinside a web are known as the most effective factor on page rank. This paper is to describe the concept of ranking web pages and investigate the structureof inter-linkage of pages.